I guessed from her physique that it was no idle hobby either.“I am,” came the muffled reply, “I’m training for the Edinburgh Marathon.” This...was followed by another low groan that caused my hand to slip from her leg momentarily. “Is it your first?” I was keen to keep talking to stop my mind from wandering further up her legs than my hands were permitted. Her thick thighs were all muscle and I had to really work hard to knead the tissue. “I…” She faltered for a moment, purring her approval as I. Once inside she was told to remove her blouse skirt and bra then to attach the dog leash chain to her collar where it was to remain till she left the next day as a symbol of her servitude.I again at his command fitted ankle and wrist straps before he led her upstairs with me following her shapely arse, as we went up.I had still a stiffee since we set out, in fact since the shave, seemingly hours ago I was then instructed to secure dawn to the bed, which after she had laid down and spread her. " She said.Liz pulled back the duvet, spread her legs and pulled the crotch of her sexy pink satin panties to one side, exposing her bush and moist pussy. She put one of her nipples in her mouth and sucked hard as she looked at me invitingly. With my instant erection I began slowly fucking her in missionary position. She locked her arms over my back as we were kissing and licking each others mouths. As our pace quickened our kissing intensified. Liz liked her kisses wet, our faces were soon. “ I do hope you approve “ say’s the Master” “Oh yes “ say’s Mrs Brown, “we most certainly do, and what a wonderful way to keep a girl in check”Mr and Mrs Brown move closer for a better view, Mrs Brown is clearly getting excited and very wet in the cunt, Mr Brown is now sporting a huge erection, Oh how they hope Tina is accepted into the school.Tina is standing next to the Headmaster, by his side, “Would you like to be considered for selection” say’s Master to Tina? Tina can hardly get the word.